Antipope Urban III

Antipope Urban III (1050-) was Antipope in Sitten from 15 July 1100.

Biography
Udo was born in 1050 to a family of Catholic Germans, and he became the prince-bishop of Valais under the Holy Roman Empire. On 15 July 1100 Kaiser Henry IV of Germany set up Udo as Pope in Sitten, and he took on the name "Urban III".